Perforator



FIG. 1 is a top plan view of a perforator showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view;

FIG. 4 is a rear elevational view;

FIG. 5 is a right side elevational view; and

FIG. 6 is a left side elevational view. 

The ornamental design for a perforator, substantially as shown. 